2 * Copyright (c) 1992, 1993, University of Vermont and State
3 * Agricultural College.
4 * Copyright (c) 1992, 1993, Garrett A. Wollman.
7 * Copyright (c) 1990, 1991, William F. Jolitz
8 * Copyright (c) 1990, The Regents of the University of California
11 * Copyright (c) 1993, 1994, Charles M. Hannum
13 * EtherExpress 16 support:
14 * Copyright (c) 1993, 1994, 1995, Rodney W. Grimes
15 * Copyright (c) 1997, Aaron C. Smith
17 * All rights reserved.
19 * Redistribution and use in source and binary forms, with or without
20 * modification, are permitted provided that the following conditions
22 * 1. Redistributions of source code must retain the above copyright
23 * notice, this list of conditions and the following disclaimer.
24 * 2. Redistributions in binary form must reproduce the above copyright
25 * notice, this list of conditions and the following disclaimer in the
26 * documentation and/or other materials provided with the distribution.
27 * 3. All advertising materials mentioning features or use of this software
28 * must display the following acknowledgement:
29 * This product includes software developed by the University of
30 * Vermont and State Agricultural College and Garrett A. Wollman, by
31 * William F. Jolitz, by the University of California, Berkeley,
32 * Lawrence Berkeley Laboratory, and their contributors, by
33 * Charles M. Hannum, by Rodney W. Grimes, and by Aaron C. Smith.
34 * 4. Neither the names of the Universities nor the names of the authors
35 * may be used to endorse or promote products derived from this software
36 * without specific prior written permission.
38 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
39 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
40 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
41 * ARE DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OR AUTHORS BE LIABLE
42 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
43 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
44 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
45 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
46 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
47 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50 * MAINTAINER: Matthew N. Dodd <winter@jurai.net>
53 #include <sys/cdefs.h>
54 __FBSDID("$FreeBSD$");
57 * Intel 82586 Ethernet chip
58 * Register, bit, and structure definitions.
60 * Written by GAW with reference to the Clarkson Packet Driver code for this
61 * chip written by Russ Nelson and others.
63 * Intel EtherExpress 16 support from if_ix.c, written by Rodney W. Grimes.
67 * The i82586 is a very versatile chip, found in many implementations.
68 * Programming this chip is mostly the same, but certain details differ
69 * from card to card. This driver is written so that different cards
70 * can be automatically detected at run-time.
76 * We run the 82586 in a standard Ethernet mode. We keep NFRAMES
77 * received frame descriptors around for the receiver to use, and
78 * NRXBUFS associated receive buffer descriptors, both in a circular
79 * list. Whenever a frame is received, we rotate both lists as
80 * necessary. (The 586 treats both lists as a simple queue.) We also
81 * keep a transmit command around so that packets can be sent off
84 * We configure the adapter in AL-LOC = 1 mode, which means that the
85 * Ethernet/802.3 MAC header is placed at the beginning of the receive
86 * buffer rather than being split off into various fields in the RFD.
87 * This also means that we must include this header in the transmit
90 * By convention, all transmit commands, and only transmit commands,
91 * shall have the I (IE_CMD_INTR) bit set in the command. This way,
92 * when an interrupt arrives at ieintr(), it is immediately possible
93 * to tell what precisely caused it. ANY OTHER command-sending routines
94 * should run at splimp(), and should post an acknowledgement to every
95 * interrupt they generate.
97 * The 82586 has a 24-bit address space internally, and the adaptor's
98 * memory is located at the top of this region. However, the value
99 * we are given in configuration is normally the *bottom* of the adaptor
100 * RAM. So, we must go through a few gyrations to come up with a
101 * kernel virtual address which represents the actual beginning of the
102 * 586 address space. First, we autosize the RAM by running through
103 * several possible sizes and trying to initialize the adapter under
104 * the assumption that the selected size is correct. Then, knowing
105 * the correct RAM size, we set up our pointers in the softc `iomem'
106 * represents the computed base of the 586 address space. `iomembot'
107 * represents the actual configured base of adapter RAM. Finally,
108 * `iosize' represents the calculated size of 586 RAM. Then, when
109 * laying out commands, we use the interval [iomembot, iomembot +
110 * iosize); to make 24-pointers, we subtract iomem, and to make
111 * 16-pointers, we subtract iomem and and with 0xffff.
114 #include <sys/param.h>
115 #include <sys/systm.h>
116 #include <sys/eventhandler.h>
117 #include <sys/kernel.h>
118 #include <sys/malloc.h>
119 #include <sys/mbuf.h>
120 #include <sys/socket.h>
121 #include <sys/sockio.h>
122 #include <sys/syslog.h>
124 #include <sys/module.h>
127 #include <machine/bus.h>
128 #include <machine/resource.h>
129 #include <sys/rman.h>
131 #include <net/ethernet.h>
133 #include <net/if_types.h>
134 #include <net/if_dl.h>
136 #include <netinet/in.h>
137 #include <netinet/if_ether.h>
139 #include <dev/ic/i82586.h>
140 #include <dev/ie/if_ievar.h>
141 #include <dev/ie/if_iereg.h>
142 #include <dev/ie/if_ie507.h>
143 #include <dev/ie/if_iee16.h>
144 #include <i386/isa/elink.h>
149 #define IED_RINT 0x01
150 #define IED_TINT 0x02
153 #define IED_READFRAME 0x10
154 static int ie_debug = IED_RNR;
158 #define IE_BUF_LEN ETHER_MAX_LEN /* length of transmit buffer */
160 /* Forward declaration */
163 static void ieinit (void *);
164 static void ie_stop (struct ie_softc *);
165 static int ieioctl (struct ifnet *, u_long, caddr_t);
166 static void iestart (struct ifnet *);
169 ee16_interrupt_enable (struct ie_softc *);
170 static void ee16_eeprom_outbits (struct ie_softc *, int, int);
171 static void ee16_eeprom_clock (struct ie_softc *, int);
172 static u_short ee16_read_eeprom (struct ie_softc *, int);
173 static int ee16_eeprom_inbits (struct ie_softc *);
174 static void ee16_shutdown (void *, int);
177 ie_ack (struct ie_softc *, u_int);
178 static void iereset (struct ie_softc *);
179 static void ie_readframe (struct ie_softc *, int);
180 static void ie_drop_packet_buffer (struct ie_softc *);
181 static void find_ie_mem_size (struct ie_softc *);
182 static void chan_attn_timeout (void *);
183 static int command_and_wait (struct ie_softc *,
184 int, void volatile *, int);
185 static void run_tdr (struct ie_softc *,
186 volatile struct ie_tdr_cmd *);
187 static int ierint (struct ie_softc *);
188 static int ietint (struct ie_softc *);
189 static int iernr (struct ie_softc *);
190 static void start_receiver (struct ie_softc *);
192 ieget (struct ie_softc *, struct mbuf **);
193 static v_caddr_t setup_rfa (struct ie_softc *, v_caddr_t);
194 static int mc_setup (struct ie_softc *);
195 static void ie_mc_reset (struct ie_softc *);
198 static void print_rbd (volatile struct ie_recv_buf_desc * rbd);
199 static int in_ierint = 0;
200 static int in_ietint = 0;
203 static const char *ie_hardware_names[] = {
215 * sizeof(iscp) == 1+1+2+4 == 8
216 * sizeof(scb) == 2+2+2+2+2+2+2+2 == 16
217 * NFRAMES * sizeof(rfd) == NFRAMES*(2+2+2+2+6+6+2+2) == NFRAMES*24 == 384
218 * sizeof(xmit_cmd) == 2+2+2+2+6+2 == 18
219 * sizeof(transmit buffer) == 1512
220 * sizeof(transmit buffer desc) == 8
224 * NRXBUFS * sizeof(rbd) == NRXBUFS*(2+2+4+2+2) == NRXBUFS*12
225 * NRXBUFS * IE_RBUF_SIZE == NRXBUFS*256
227 * NRXBUFS should be (16384 - 1946) / (256 + 12) == 14438 / 268 == 53
229 * With NRXBUFS == 48, this leaves us 1574 bytes for another command or
230 * more buffers. Another transmit command would be 18+8+1512 == 1538
231 * ---just barely fits!
233 * Obviously all these would have to be reduced for smaller memory sizes.
234 * With a larger memory, it would be possible to roughly double the number
235 * of both transmit and receive buffers.
238 #define NFRAMES 4 /* number of receive frames */
239 #define NRXBUFS 24 /* number of buffers to allocate */
240 #define IE_RBUF_SIZE 256 /* size of each buffer, MUST BE POWER OF TWO */
241 #define NTXBUFS 1 /* number of transmit commands */
242 #define IE_TBUF_SIZE ETHER_MAX_LEN /* size of transmit buffer */
244 #define MK_24(base, ptr) ((caddr_t)((uintptr_t)ptr - (uintptr_t)base))
245 #define MK_16(base, ptr) ((u_short)(uintptr_t)MK_24(base, ptr))
248 ee16_shutdown(void *xsc, int howto)
250 struct ie_softc *sc = (struct ie_softc *)xsc;
253 outb(PORT(sc) + IEE16_ECTRL, IEE16_RESET_ASIC);
254 outb(PORT(sc) + IEE16_ECTRL, 0);
258 * Taken almost exactly from Bill's if_is.c, then modified beyond recognition.
261 ie_attach(device_t dev)
263 struct ie_softc * sc;
268 sc = device_get_softc(dev);
269 ifp = sc->ifp = if_alloc(IFT_ETHER);
271 device_printf(sc->dev, "can not if_alloc()\n");
276 sc->unit = device_get_unit(dev);
279 * based on the amount of memory we have, allocate our tx and rx
282 factor = rman_get_size(sc->mem_res) / 8192;
283 sc->nframes = factor * NFRAMES;
284 sc->nrxbufs = factor * NRXBUFS;
285 sc->ntxbufs = factor * NTXBUFS;
288 * Since all of these guys are arrays of pointers, allocate as one
289 * big chunk and dole out accordingly.
291 allocsize = sizeof(void *) * (sc->nframes
293 + (sc->ntxbufs * 3));
294 sc->rframes = (volatile struct ie_recv_frame_desc **) malloc(allocsize,
297 if (sc->rframes == NULL) {
302 (volatile struct ie_recv_buf_desc **)&sc->rframes[sc->nframes];
303 sc->cbuffs = (volatile u_char **)&sc->rbuffs[sc->nrxbufs];
305 (volatile struct ie_xmit_cmd **)&sc->cbuffs[sc->nrxbufs];
307 (volatile struct ie_xmit_buf **)&sc->xmit_cmds[sc->ntxbufs];
308 sc->xmit_cbuffs = (volatile u_char **)&sc->xmit_buffs[sc->ntxbufs];
311 device_printf(sc->dev, "hardware type %s, revision %d\n",
312 ie_hardware_names[sc->hard_type], sc->hard_vers + 1);
315 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
316 ifp->if_mtu = ETHERMTU;
317 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST |
319 ifp->if_start = iestart;
320 ifp->if_ioctl = ieioctl;
321 ifp->if_init = ieinit;
322 ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
324 if (sc->hard_type == IE_EE16)
325 EVENTHANDLER_REGISTER(shutdown_post_sync, ee16_shutdown,
326 sc, SHUTDOWN_PRI_DEFAULT);
328 ether_ifattach(ifp, sc->enaddr);
333 ie_ack(struct ie_softc *sc, u_int mask)
336 sc->scb->ie_command = sc->scb->ie_status & mask;
337 (*sc->ie_chan_attn) (sc);
341 * What to do upon receipt of an interrupt.
346 struct ie_softc *sc = (struct ie_softc *)xsc;
349 /* Clear the interrupt latch on the 3C507. */
350 if (sc->hard_type == IE_3C507
351 && (inb(PORT(sc) + IE507_CTRL) & EL_CTRL_INTL))
352 outb(PORT(sc) + IE507_ICTRL, 1);
354 /* disable interrupts on the EE16. */
355 if (sc->hard_type == IE_EE16)
356 outb(PORT(sc) + IEE16_IRQ, sc->irq_encoded);
358 status = sc->scb->ie_status;
362 /* Don't ack interrupts which we didn't receive */
363 ie_ack(sc, IE_ST_WHENCE & status);
365 if (status & (IE_ST_RECV | IE_ST_RNR)) {
368 if (ie_debug & IED_RINT)
369 printf("ie%d: rint\n", sc->unit);
376 if (status & IE_ST_DONE) {
379 if (ie_debug & IED_TINT)
380 printf("ie%d: tint\n", sc->unit);
387 if (status & IE_ST_RNR) {
389 if (ie_debug & IED_RNR)
390 printf("ie%d: rnr\n", sc->unit);
395 if ((status & IE_ST_ALLDONE) && (ie_debug & IED_CNA))
396 printf("ie%d: cna\n", sc->unit);
399 if ((status = sc->scb->ie_status) & IE_ST_WHENCE)
402 /* Clear the interrupt latch on the 3C507. */
403 if (sc->hard_type == IE_3C507)
404 outb(PORT(sc) + IE507_ICTRL, 1);
406 /* enable interrupts on the EE16. */
407 if (sc->hard_type == IE_EE16)
408 outb(PORT(sc) + IEE16_IRQ, sc->irq_encoded | IEE16_IRQ_ENABLE);
413 * Process a received-frame interrupt.
416 ierint(struct ie_softc *sc)
419 static int timesthru = 1024;
423 status = sc->rframes[i]->ie_fd_status;
425 if ((status & IE_FD_COMPLETE) && (status & IE_FD_OK)) {
426 sc->ifp->if_ipackets++;
428 sc->ifp->if_ierrors +=
429 sc->scb->ie_err_crc +
430 sc->scb->ie_err_align +
431 sc->scb->ie_err_resource +
432 sc->scb->ie_err_overrun;
433 sc->scb->ie_err_crc = 0;
434 sc->scb->ie_err_align = 0;
435 sc->scb->ie_err_resource = 0;
436 sc->scb->ie_err_overrun = 0;
441 if (status & IE_FD_RNR) {
442 if (!(sc->scb->ie_status & IE_RU_READY)) {
443 sc->rframes[0]->ie_fd_next =
444 MK_16(MEM(sc), sc->rbuffs[0]);
445 sc->scb->ie_recv_list =
446 MK_16(MEM(sc), sc->rframes[0]);
447 command_and_wait(sc, IE_RU_START, 0, 0);
452 i = (i + 1) % sc->nframes;
458 * Process a command-complete interrupt. These are only generated by
459 * the transmission of frames. This routine is deceptively simple, since
460 * most of the real work is done by iestart().
463 ietint(struct ie_softc *sc)
468 sc->ifp->if_timer = 0;
469 sc->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
471 for (i = 0; i < sc->xmit_count; i++) {
472 status = sc->xmit_cmds[i]->ie_xmit_status;
474 if (status & IE_XS_LATECOLL) {
475 printf("ie%d: late collision\n", sc->unit);
476 sc->ifp->if_collisions++;
477 sc->ifp->if_oerrors++;
478 } else if (status & IE_XS_NOCARRIER) {
479 printf("ie%d: no carrier\n", sc->unit);
480 sc->ifp->if_oerrors++;
481 } else if (status & IE_XS_LOSTCTS) {
482 printf("ie%d: lost CTS\n", sc->unit);
483 sc->ifp->if_oerrors++;
484 } else if (status & IE_XS_UNDERRUN) {
485 printf("ie%d: DMA underrun\n", sc->unit);
486 sc->ifp->if_oerrors++;
487 } else if (status & IE_XS_EXCMAX) {
488 printf("ie%d: too many collisions\n", sc->unit);
489 sc->ifp->if_collisions += 16;
490 sc->ifp->if_oerrors++;
492 sc->ifp->if_opackets++;
493 sc->ifp->if_collisions += status & IE_XS_MAXCOLL;
499 * If multicast addresses were added or deleted while we were
500 * transmitting, ie_mc_reset() set the want_mcsetup flag indicating
501 * that we should do it.
503 if (sc->want_mcsetup) {
505 sc->want_mcsetup = 0;
507 /* Wish I knew why this seems to be necessary... */
508 sc->xmit_cmds[0]->ie_xmit_status |= IE_STAT_COMPL;
511 return (0); /* shouldn't be necessary */
515 * Process a receiver-not-ready interrupt. I believe that we get these
516 * when there aren't enough buffers to go around. For now (FIXME), we
517 * just restart the receiver, and hope everything's ok.
520 iernr(struct ie_softc *sc)
523 setup_rfa(sc, (v_caddr_t) sc->rframes[0]);
525 sc->scb->ie_recv_list = MK_16(MEM(sc), sc->rframes[0]);
526 command_and_wait(sc, IE_RU_START, 0, 0);
528 /* This doesn't work either, but it doesn't hang either. */
529 command_and_wait(sc, IE_RU_DISABLE, 0, 0); /* just in case */
530 setup_rfa(sc, (v_caddr_t) sc->rframes[0]); /* ignore cast-qual */
532 sc->scb->ie_recv_list = MK_16(MEM(sc), sc->rframes[0]);
533 command_and_wait(sc, IE_RU_START, 0, 0); /* was ENABLE */
536 ie_ack(sc, IE_ST_WHENCE);
538 sc->ifp->if_ierrors++;
543 * Compare two Ether/802 addresses for equality, inlined and
544 * unrolled for speed. I'd love to have an inline assembler
548 ether_equal(u_char * one, u_char * two)
550 if (one[0] != two[0])
552 if (one[1] != two[1])
554 if (one[2] != two[2])
556 if (one[3] != two[3])
558 if (one[4] != two[4])
560 if (one[5] != two[5])
566 * Determine quickly whether we should bother reading in this packet.
567 * This depends on whether BPF and/or bridging is enabled, whether we
568 * are receiving multicast address, and whether promiscuous mode is enabled.
569 * We assume that if IFF_PROMISC is set, then *somebody* wants to see
570 * all incoming packets.
573 check_eh(struct ie_softc *sc, struct ether_header *eh)
575 /* Optimize the common case: normal operation. We've received
576 either a unicast with our dest or a multicast packet. */
577 if (sc->promisc == 0) {
580 /* If not multicast, it's definitely for us */
581 if ((eh->ether_dhost[0] & 1) == 0)
584 /* Accept broadcasts (loose but fast check) */
585 if (eh->ether_dhost[0] == 0xff)
588 /* Compare against our multicast addresses */
589 for (i = 0; i < sc->mcast_count; i++) {
590 if (ether_equal(eh->ether_dhost,
591 (u_char *)&sc->mcast_addrs[i]))
597 /* Always accept packets when in promiscuous mode */
598 if ((sc->promisc & IFF_PROMISC) != 0)
601 /* Always accept packets directed at us */
602 if (ether_equal(eh->ether_dhost, IF_LLADDR(sc->ifp)))
605 /* Must have IFF_ALLMULTI but not IFF_PROMISC set. The chip is
606 actually in promiscuous mode, so discard unicast packets. */
607 return((eh->ether_dhost[0] & 1) != 0);
611 * We want to isolate the bits that have meaning... This assumes that
612 * IE_RBUF_SIZE is an even power of two. If somehow the act_len exceeds
613 * the size of the buffer, then we are screwed anyway.
616 ie_buflen(struct ie_softc *sc, int head)
618 return (sc->rbuffs[head]->ie_rbd_actual
619 & (IE_RBUF_SIZE | (IE_RBUF_SIZE - 1)));
623 ie_packet_len(struct ie_softc *sc)
626 int head = sc->rbhead;
630 if (!(sc->rbuffs[sc->rbhead]->ie_rbd_actual & IE_RBD_USED)) {
632 print_rbd(sc->rbuffs[sc->rbhead]);
635 "ie%d: receive descriptors out of sync at %d\n",
636 sc->unit, sc->rbhead);
640 i = sc->rbuffs[head]->ie_rbd_actual & IE_RBD_LAST;
642 acc += ie_buflen(sc, head);
643 head = (head + 1) % sc->nrxbufs;
650 * Read data off the interface, and turn it into an mbuf chain.
652 * This code is DRAMATICALLY different from the previous version; this
653 * version tries to allocate the entire mbuf chain up front, given the
654 * length of the data available. This enables us to allocate mbuf
655 * clusters in many situations where before we would have had a long
656 * chain of partially-full mbufs. This should help to speed up the
657 * operation considerably. (Provided that it works, of course.)
660 ieget(struct ie_softc *sc, struct mbuf **mp)
662 struct ether_header eh;
663 struct mbuf *m, *top, **mymp;
669 totlen = ie_packet_len(sc);
674 * Snarf the Ethernet header.
676 bcopy((caddr_t)sc->cbuffs[sc->rbhead], &eh, sizeof(struct ether_header));
677 /* ignore cast-qual warning here */
680 * As quickly as possible, check if this packet is for us. If not,
681 * don't waste a single cycle copying the rest of the packet in.
682 * This is only a consideration when FILTER is defined; i.e., when
683 * we are either running BPF or doing multicasting.
685 if (!check_eh(sc, &eh)) {
686 ie_drop_packet_buffer(sc);
687 sc->ifp->if_ierrors--; /* just this case, it's not an
693 MGETHDR(m, M_DONTWAIT, MT_DATA);
695 ie_drop_packet_buffer(sc);
696 /* XXXX if_ierrors++; */
701 m->m_pkthdr.rcvif = sc->ifp;
703 resid = m->m_pkthdr.len = totlen;
709 * This loop goes through and allocates mbufs for all the data we
710 * will be copying in. It does not actually do the copying yet.
712 do { /* while(resid > 0) */
714 * Try to allocate an mbuf to hold the data that we have.
715 * If we already allocated one, just get another one and
716 * stick it on the end (eventually). If we don't already
717 * have one, try to allocate an mbuf cluster big enough to
718 * hold the whole packet, if we think it's reasonable, or a
719 * single mbuf which may or may not be big enough. Got that?
722 MGET(m, M_DONTWAIT, MT_DATA);
725 ie_drop_packet_buffer(sc);
730 if (resid >= MINCLSIZE) {
731 MCLGET(m, M_DONTWAIT);
732 if (m->m_flags & M_EXT)
733 m->m_len = min(resid, MCLBYTES);
735 if (resid < m->m_len) {
736 if (!top && resid + max_linkhdr <= m->m_len)
737 m->m_data += max_linkhdr;
746 resid = totlen; /* remaining data */
747 offset = 0; /* packet offset */
748 thismboff = 0; /* offset in m */
750 m = top; /* current mbuf */
751 head = sc->rbhead; /* current rx buffer */
754 * Now we take the mbuf chain (hopefully only one mbuf most of the
755 * time) and stuff the data into it. There are no possible failures
756 * at or after this point.
758 while (resid > 0) { /* while there's stuff left */
759 int thislen = ie_buflen(sc, head) - offset;
762 * If too much data for the current mbuf, then fill the
763 * current one up, go to the next one, and try again.
765 if (thislen > m->m_len - thismboff) {
766 int newlen = m->m_len - thismboff;
768 bcopy((v_caddr_t) (sc->cbuffs[head] + offset),
769 mtod(m, caddr_t) +thismboff, (unsigned) newlen);
770 /* ignore cast-qual warning */
772 thismboff = 0; /* new mbuf, so no offset */
773 offset += newlen; /* we are now this far into
775 resid -= newlen; /* so there is this much left
780 * If there is more than enough space in the mbuf to hold
781 * the contents of this buffer, copy everything in, advance
782 * pointers, and so on.
784 if (thislen < m->m_len - thismboff) {
785 bcopy((v_caddr_t) (sc->cbuffs[head] + offset),
786 mtod(m, caddr_t) +thismboff, (unsigned) thislen);
787 thismboff += thislen; /* we are this far into the
789 resid -= thislen; /* and this much is left */
793 * Otherwise, there is exactly enough space to put this
794 * buffer's contents into the current mbuf. Do the
795 * combination of the above actions.
797 bcopy((v_caddr_t) (sc->cbuffs[head] + offset),
798 mtod(m, caddr_t) + thismboff, (unsigned) thislen);
800 thismboff = 0; /* new mbuf, start at the beginning */
801 resid -= thislen; /* and we are this far through */
804 * Advance all the pointers. We can get here from either of
805 * the last two cases, but never the first.
809 sc->rbuffs[head]->ie_rbd_actual = 0;
810 sc->rbuffs[head]->ie_rbd_length |= IE_RBD_LAST;
811 sc->rbhead = head = (head + 1) % sc->nrxbufs;
812 sc->rbuffs[sc->rbtail]->ie_rbd_length &= ~IE_RBD_LAST;
813 sc->rbtail = (sc->rbtail + 1) % sc->nrxbufs;
817 * Unless something changed strangely while we were doing the copy,
818 * we have now copied everything in from the shared memory. This
819 * means that we are done.
825 * Read frame NUM from unit UNIT (pre-cached as IE).
827 * This routine reads the RFD at NUM, and copies in the buffers from
828 * the list of RBD, then rotates the RBD and RFD lists so that the receiver
829 * doesn't start complaining. Trailers are DROPPED---there's no point
830 * in wasting time on confusing code to deal with them. Hopefully,
831 * this machine will never ARP for trailers anyway.
834 ie_readframe(struct ie_softc *sc, int num/* frame number to read */)
836 struct ifnet *ifp = sc->ifp;
837 struct ie_recv_frame_desc rfd;
840 struct ether_header *eh;
843 bcopy((v_caddr_t) (sc->rframes[num]), &rfd,
844 sizeof(struct ie_recv_frame_desc));
847 * Immediately advance the RFD list, since we we have copied ours
850 sc->rframes[num]->ie_fd_status = 0;
851 sc->rframes[num]->ie_fd_last |= IE_FD_LAST;
852 sc->rframes[sc->rftail]->ie_fd_last &= ~IE_FD_LAST;
853 sc->rftail = (sc->rftail + 1) % sc->nframes;
854 sc->rfhead = (sc->rfhead + 1) % sc->nframes;
856 if (rfd.ie_fd_status & IE_FD_OK) {
858 sc->ifp->if_ierrors++; /* this counts as an
864 eh = mtod(m, struct ether_header *);
865 if (ie_debug & IED_READFRAME) {
866 printf("ie%d: frame from ether %6D type %x\n", sc->unit,
867 eh->ether_shost, ":", (unsigned) eh->ether_type);
869 if (ntohs(eh->ether_type) > ETHERTYPE_TRAIL
870 && ntohs(eh->ether_type) < (ETHERTYPE_TRAIL + ETHERTYPE_NTRAILER))
871 printf("received trailer!\n");
878 * Finally pass this packet up to higher layers.
880 (*ifp->if_input)(ifp, m);
884 ie_drop_packet_buffer(struct ie_softc *sc)
890 * This means we are somehow out of sync. So, we reset the
893 if (!(sc->rbuffs[sc->rbhead]->ie_rbd_actual & IE_RBD_USED)) {
895 print_rbd(sc->rbuffs[sc->rbhead]);
897 log(LOG_ERR, "ie%d: receive descriptors out of sync at %d\n",
898 sc->unit, sc->rbhead);
902 i = sc->rbuffs[sc->rbhead]->ie_rbd_actual & IE_RBD_LAST;
904 sc->rbuffs[sc->rbhead]->ie_rbd_length |= IE_RBD_LAST;
905 sc->rbuffs[sc->rbhead]->ie_rbd_actual = 0;
906 sc->rbhead = (sc->rbhead + 1) % sc->nrxbufs;
907 sc->rbuffs[sc->rbtail]->ie_rbd_length &= ~IE_RBD_LAST;
908 sc->rbtail = (sc->rbtail + 1) % sc->nrxbufs;
914 * Start transmission on an interface.
917 iestart(struct ifnet *ifp)
919 struct ie_softc *sc = ifp->if_softc;
921 volatile unsigned char *buffer;
925 * This is not really volatile, in this routine, but it makes gcc
928 volatile u_short *bptr = &sc->scb->ie_command_list;
930 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
932 if (ifp->if_drv_flags & IFF_DRV_OACTIVE)
936 IF_DEQUEUE(&sc->ifp->if_snd, m);
940 buffer = sc->xmit_cbuffs[sc->xmit_count];
943 for (m0 = m; m && len < IE_BUF_LEN; m = m->m_next) {
944 bcopy(mtod(m, caddr_t), buffer, m->m_len);
950 len = max(len, ETHER_MIN_LEN);
953 * See if bpf is listening on this interface, let it see the
954 * packet before we commit it to the wire.
957 (void *)sc->xmit_cbuffs[sc->xmit_count], len);
959 sc->xmit_buffs[sc->xmit_count]->ie_xmit_flags =
961 sc->xmit_buffs[sc->xmit_count]->ie_xmit_next = 0xffff;
962 sc->xmit_buffs[sc->xmit_count]->ie_xmit_buf =
963 MK_24(sc->iomem, sc->xmit_cbuffs[sc->xmit_count]);
965 sc->xmit_cmds[sc->xmit_count]->com.ie_cmd_cmd = IE_CMD_XMIT;
966 sc->xmit_cmds[sc->xmit_count]->ie_xmit_status = 0;
967 sc->xmit_cmds[sc->xmit_count]->ie_xmit_desc =
968 MK_16(sc->iomem, sc->xmit_buffs[sc->xmit_count]);
970 *bptr = MK_16(sc->iomem, sc->xmit_cmds[sc->xmit_count]);
971 bptr = &sc->xmit_cmds[sc->xmit_count]->com.ie_cmd_link;
973 } while (sc->xmit_count < sc->ntxbufs);
976 * If we queued up anything for transmission, send it.
978 if (sc->xmit_count) {
979 sc->xmit_cmds[sc->xmit_count - 1]->com.ie_cmd_cmd |=
980 IE_CMD_LAST | IE_CMD_INTR;
983 * By passing the command pointer as a null, we tell
984 * command_and_wait() to pretend that this isn't an action
985 * command. I wish I understood what was happening here.
987 command_and_wait(sc, IE_CU_START, 0, 0);
988 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
994 * Check to see if there's an 82586 out there.
997 check_ie_present(struct ie_softc *sc)
999 volatile struct ie_sys_conf_ptr *scp;
1000 volatile struct ie_int_sys_conf_ptr *iscp;
1001 volatile struct ie_sys_ctl_block *scb;
1007 realbase = (uintptr_t) sc->iomembot + sc->iosize - (1 << 24);
1009 scp = (volatile struct ie_sys_conf_ptr *) (uintptr_t)
1010 (realbase + IE_SCP_ADDR);
1011 bzero((volatile char *) scp, sizeof *scp);
1014 * First we put the ISCP at the bottom of memory; this tests to make
1015 * sure that our idea of the size of memory is the same as the
1016 * controller's. This is NOT where the ISCP will be in normal
1019 iscp = (volatile struct ie_int_sys_conf_ptr *) sc->iomembot;
1020 bzero((volatile char *)iscp, sizeof *iscp);
1022 scb = (volatile struct ie_sys_ctl_block *) sc->iomembot;
1023 bzero((volatile char *)scb, sizeof *scb);
1025 scp->ie_bus_use = sc->bus_use; /* 8-bit or 16-bit */
1026 scp->ie_iscp_ptr = (caddr_t) (uintptr_t)
1027 ((volatile char *) iscp - (volatile char *) (uintptr_t) realbase);
1030 iscp->ie_scb_offset = MK_16(realbase, scb) + 256;
1032 (*sc->ie_reset_586) (sc);
1033 (*sc->ie_chan_attn) (sc);
1035 DELAY(100); /* wait a while... */
1037 if (iscp->ie_busy) {
1042 * Now relocate the ISCP to its real home, and reset the controller
1045 iscp = (void *) Align((caddr_t) (uintptr_t)
1046 (realbase + IE_SCP_ADDR -
1047 sizeof(struct ie_int_sys_conf_ptr)));
1048 bzero((volatile char *) iscp, sizeof *iscp); /* ignore cast-qual */
1050 scp->ie_iscp_ptr = (caddr_t) (uintptr_t)
1051 ((volatile char *) iscp - (volatile char *) (uintptr_t) realbase);
1054 iscp->ie_scb_offset = MK_16(realbase, scb);
1056 (*sc->ie_reset_586) (sc);
1057 (*sc->ie_chan_attn) (sc);
1061 if (iscp->ie_busy) {
1065 sc->iomem = (caddr_t) (uintptr_t) realbase;
1071 * Acknowledge any interrupts we may have caused...
1073 ie_ack(sc, IE_ST_WHENCE);
1080 * Divine the memory size of ie board UNIT.
1081 * Better hope there's nothing important hiding just below the ie card...
1084 find_ie_mem_size(struct ie_softc *sc)
1090 for (size = 65536; size >= 8192; size -= 8192) {
1091 if (check_ie_present(sc)) {
1100 el_reset_586(struct ie_softc *sc)
1102 outb(PORT(sc) + IE507_CTRL, EL_CTRL_RESET);
1104 outb(PORT(sc) + IE507_CTRL, EL_CTRL_NORMAL);
1109 sl_reset_586(struct ie_softc *sc)
1111 outb(PORT(sc) + IEATT_RESET, 0);
1115 ee16_reset_586(struct ie_softc *sc)
1117 outb(PORT(sc) + IEE16_ECTRL, IEE16_RESET_586);
1119 outb(PORT(sc) + IEE16_ECTRL, 0);
1124 el_chan_attn(struct ie_softc *sc)
1126 outb(PORT(sc) + IE507_ATTN, 1);
1130 sl_chan_attn(struct ie_softc *sc)
1132 outb(PORT(sc) + IEATT_ATTN, 0);
1136 ee16_chan_attn(struct ie_softc *sc)
1138 outb(PORT(sc) + IEE16_ATTN, 0);
1142 ee16_read_eeprom(struct ie_softc *sc, int location)
1146 ectrl = inb(sc->port + IEE16_ECTRL);
1147 ectrl &= IEE16_ECTRL_MASK;
1148 ectrl |= IEE16_ECTRL_EECS;
1149 outb(sc->port + IEE16_ECTRL, ectrl);
1151 ee16_eeprom_outbits(sc, IEE16_EEPROM_READ, IEE16_EEPROM_OPSIZE1);
1152 ee16_eeprom_outbits(sc, location, IEE16_EEPROM_ADDR_SIZE);
1153 edata = ee16_eeprom_inbits(sc);
1154 ectrl = inb(sc->port + IEE16_ECTRL);
1155 ectrl &= ~(IEE16_RESET_ASIC | IEE16_ECTRL_EEDI | IEE16_ECTRL_EECS);
1156 outb(sc->port + IEE16_ECTRL, ectrl);
1157 ee16_eeprom_clock(sc, 1);
1158 ee16_eeprom_clock(sc, 0);
1163 ee16_eeprom_outbits(struct ie_softc *sc, int edata, int count)
1167 ectrl = inb(sc->port + IEE16_ECTRL);
1168 ectrl &= ~IEE16_RESET_ASIC;
1169 for (i = count - 1; i >= 0; i--) {
1170 ectrl &= ~IEE16_ECTRL_EEDI;
1171 if (edata & (1 << i)) {
1172 ectrl |= IEE16_ECTRL_EEDI;
1174 outb(sc->port + IEE16_ECTRL, ectrl);
1175 DELAY(1); /* eeprom data must be setup for 0.4 uSec */
1176 ee16_eeprom_clock(sc, 1);
1177 ee16_eeprom_clock(sc, 0);
1179 ectrl &= ~IEE16_ECTRL_EEDI;
1180 outb(sc->port + IEE16_ECTRL, ectrl);
1181 DELAY(1); /* eeprom data must be held for 0.4 uSec */
1185 ee16_eeprom_inbits(struct ie_softc *sc)
1187 int ectrl, edata, i;
1189 ectrl = inb(sc->port + IEE16_ECTRL);
1190 ectrl &= ~IEE16_RESET_ASIC;
1191 for (edata = 0, i = 0; i < 16; i++) {
1193 ee16_eeprom_clock(sc, 1);
1194 ectrl = inb(sc->port + IEE16_ECTRL);
1195 if (ectrl & IEE16_ECTRL_EEDO) {
1198 ee16_eeprom_clock(sc, 0);
1204 ee16_eeprom_clock(struct ie_softc *sc, int state)
1208 ectrl = inb(sc->port + IEE16_ECTRL);
1209 ectrl &= ~(IEE16_RESET_ASIC | IEE16_ECTRL_EESK);
1211 ectrl |= IEE16_ECTRL_EESK;
1213 outb(sc->port + IEE16_ECTRL, ectrl);
1214 DELAY(9); /* EESK must be stable for 8.38 uSec */
1217 static __inline void
1218 ee16_interrupt_enable(struct ie_softc *sc)
1221 outb(sc->port + IEE16_IRQ, sc->irq_encoded | IEE16_IRQ_ENABLE);
1226 sl_read_ether(struct ie_softc *sc, unsigned char *addr)
1230 for (i = 0; i < 6; i++)
1231 addr[i] = inb(PORT(sc) + i);
1235 iereset(struct ie_softc *sc)
1239 printf("ie%d: reset\n", sc->unit);
1240 sc->ifp->if_flags &= ~IFF_UP;
1241 ieioctl(sc->ifp, SIOCSIFFLAGS, 0);
1244 * Stop i82586 dead in its tracks.
1246 if (command_and_wait(sc, IE_RU_ABORT | IE_CU_ABORT, 0, 0))
1247 printf("ie%d: abort commands timed out\n", sc->unit);
1249 if (command_and_wait(sc, IE_RU_DISABLE | IE_CU_STOP, 0, 0))
1250 printf("ie%d: disable commands timed out\n", sc->unit);
1253 if (!check_ie_present(sc))
1254 panic("ie disappeared!");
1257 sc->ifp->if_flags |= IFF_UP;
1258 ieioctl(sc->ifp, SIOCSIFFLAGS, 0);
1265 * This is called if we time out.
1268 chan_attn_timeout(void *rock)
1274 * Send a command to the controller and wait for it to either
1275 * complete or be accepted, depending on the command. If the
1276 * command pointer is null, then pretend that the command is
1277 * not an action command. If the command pointer is not null,
1278 * and the command is an action command, wait for
1279 * ((volatile struct ie_cmd_common *)pcmd)->ie_cmd_status & MASK
1283 command_and_wait(struct ie_softc *sc, int cmd, volatile void *pcmd, int mask)
1285 volatile struct ie_cmd_common *cc = pcmd;
1286 volatile int timedout = 0;
1287 struct callout_handle ch;
1289 sc->scb->ie_command = (u_short) cmd;
1291 if (IE_ACTION_COMMAND(cmd) && pcmd) {
1292 (*sc->ie_chan_attn) (sc);
1295 * According to the packet driver, the minimum timeout
1296 * should be .369 seconds, which we round up to .37.
1298 ch = timeout(chan_attn_timeout, (caddr_t)&timedout,
1300 /* ignore cast-qual */
1303 * Now spin-lock waiting for status. This is not a very
1304 * nice thing to do, but I haven't figured out how, or
1305 * indeed if, we can put the process waiting for action to
1306 * sleep. (We may be getting called through some other
1307 * timeout running in the kernel.)
1310 if ((cc->ie_cmd_status & mask) || timedout)
1314 untimeout(chan_attn_timeout, (caddr_t)&timedout, ch);
1315 /* ignore cast-qual */
1321 * Otherwise, just wait for the command to be accepted.
1323 (*sc->ie_chan_attn) (sc);
1325 while (sc->scb->ie_command); /* spin lock */
1332 * Run the time-domain reflectometer...
1335 run_tdr(struct ie_softc *sc, volatile struct ie_tdr_cmd *cmd)
1339 cmd->com.ie_cmd_status = 0;
1340 cmd->com.ie_cmd_cmd = IE_CMD_TDR | IE_CMD_LAST;
1341 cmd->com.ie_cmd_link = 0xffff;
1342 cmd->ie_tdr_time = 0;
1344 sc->scb->ie_command_list = MK_16(MEM(sc), cmd);
1345 cmd->ie_tdr_time = 0;
1347 if (command_and_wait(sc, IE_CU_START, cmd, IE_STAT_COMPL))
1350 result = cmd->ie_tdr_time;
1352 ie_ack(sc, IE_ST_WHENCE);
1354 if (result & IE_TDR_SUCCESS)
1357 if (result & IE_TDR_XCVR) {
1358 printf("ie%d: transceiver problem\n", sc->unit);
1359 } else if (result & IE_TDR_OPEN) {
1360 printf("ie%d: TDR detected an open %d clocks away\n", sc->unit,
1361 result & IE_TDR_TIME);
1362 } else if (result & IE_TDR_SHORT) {
1363 printf("ie%d: TDR detected a short %d clocks away\n", sc->unit,
1364 result & IE_TDR_TIME);
1366 printf("ie%d: TDR returned unknown status %x\n", sc->unit, result);
1371 start_receiver(struct ie_softc *sc)
1375 sc->scb->ie_recv_list = MK_16(MEM(sc), sc->rframes[0]);
1376 command_and_wait(sc, IE_RU_START, 0, 0);
1378 ie_ack(sc, IE_ST_WHENCE);
1384 * Here is a helper routine for iernr() and ieinit(). This sets up
1388 setup_rfa(struct ie_softc *sc, v_caddr_t ptr)
1390 volatile struct ie_recv_frame_desc *rfd = (volatile void *)ptr;
1391 volatile struct ie_recv_buf_desc *rbd;
1394 /* First lay them out */
1395 for (i = 0; i < sc->nframes; i++) {
1396 sc->rframes[i] = rfd;
1397 bzero((volatile char *) rfd, sizeof *rfd); /* ignore cast-qual */
1401 ptr = Alignvol(rfd); /* ignore cast-qual */
1403 /* Now link them together */
1404 for (i = 0; i < sc->nframes; i++) {
1405 sc->rframes[i]->ie_fd_next =
1406 MK_16(MEM(sc), sc->rframes[(i + 1) % sc->nframes]);
1409 /* Finally, set the EOL bit on the last one. */
1410 sc->rframes[sc->nframes - 1]->ie_fd_last |= IE_FD_LAST;
1413 * Now lay out some buffers for the incoming frames. Note that we
1414 * set aside a bit of slop in each buffer, to make sure that we have
1415 * enough space to hold a single frame in every buffer.
1417 rbd = (volatile void *) ptr;
1419 for (i = 0; i < sc->nrxbufs; i++) {
1420 sc->rbuffs[i] = rbd;
1421 bzero((volatile char *)rbd, sizeof *rbd);
1422 ptr = Alignvol(ptr + sizeof *rbd);
1423 rbd->ie_rbd_length = IE_RBUF_SIZE;
1424 rbd->ie_rbd_buffer = MK_24(MEM(sc), ptr);
1425 sc->cbuffs[i] = (volatile void *) ptr;
1426 ptr += IE_RBUF_SIZE;
1427 rbd = (volatile void *) ptr;
1430 /* Now link them together */
1431 for (i = 0; i < sc->nrxbufs; i++) {
1432 sc->rbuffs[i]->ie_rbd_next =
1433 MK_16(MEM(sc), sc->rbuffs[(i + 1) % sc->nrxbufs]);
1436 /* Tag EOF on the last one */
1437 sc->rbuffs[sc->nrxbufs - 1]->ie_rbd_length |= IE_RBD_LAST;
1440 * We use the head and tail pointers on receive to keep track of the
1441 * order in which RFDs and RBDs are used.
1444 sc->rftail = sc->nframes - 1;
1446 sc->rbtail = sc->nrxbufs - 1;
1448 sc->scb->ie_recv_list = MK_16(MEM(sc), sc->rframes[0]);
1449 sc->rframes[0]->ie_fd_buf_desc = MK_16(MEM(sc), sc->rbuffs[0]);
1451 ptr = Alignvol(ptr);
1456 * Run the multicast setup command.
1460 mc_setup(struct ie_softc *sc)
1462 volatile struct ie_mcast_cmd *cmd = (volatile void *)sc->xmit_cbuffs[0];
1464 cmd->com.ie_cmd_status = 0;
1465 cmd->com.ie_cmd_cmd = IE_CMD_MCAST | IE_CMD_LAST;
1466 cmd->com.ie_cmd_link = 0xffff;
1468 /* ignore cast-qual */
1469 bcopy((v_caddr_t) sc->mcast_addrs, (v_caddr_t) cmd->ie_mcast_addrs,
1470 sc->mcast_count * sizeof *sc->mcast_addrs);
1472 cmd->ie_mcast_bytes = sc->mcast_count * 6; /* grrr... */
1474 sc->scb->ie_command_list = MK_16(MEM(sc), cmd);
1475 if (command_and_wait(sc, IE_CU_START, cmd, IE_STAT_COMPL)
1476 || !(cmd->com.ie_cmd_status & IE_STAT_OK)) {
1477 printf("ie%d: multicast address setup command failed\n", sc->unit);
1484 * This routine takes the environment generated by check_ie_present()
1485 * and adds to it all the other structures we need to operate the adapter.
1486 * This includes executing the CONFIGURE, IA-SETUP, and MC-SETUP commands,
1487 * starting the receiver unit, and clearing interrupts.
1489 * THIS ROUTINE MUST BE CALLED AT splimp() OR HIGHER.
1495 struct ie_softc *sc = xsc;
1496 volatile struct ie_sys_ctl_block *scb = sc->scb;
1499 int unit = sc->unit;
1501 ptr = Alignvol((volatile char *) scb + sizeof *scb);
1504 * Send the configure command first.
1507 volatile struct ie_config_cmd *cmd = (volatile void *) ptr;
1509 ie_setup_config(cmd, sc->promisc,
1510 sc->hard_type == IE_STARLAN10);
1511 cmd->com.ie_cmd_status = 0;
1512 cmd->com.ie_cmd_cmd = IE_CMD_CONFIG | IE_CMD_LAST;
1513 cmd->com.ie_cmd_link = 0xffff;
1515 scb->ie_command_list = MK_16(MEM(sc), cmd);
1517 if (command_and_wait(sc, IE_CU_START, cmd, IE_STAT_COMPL)
1518 || !(cmd->com.ie_cmd_status & IE_STAT_OK)) {
1519 printf("ie%d: configure command failed\n", unit);
1524 * Now send the Individual Address Setup command.
1527 volatile struct ie_iasetup_cmd *cmd = (volatile void *) ptr;
1529 cmd->com.ie_cmd_status = 0;
1530 cmd->com.ie_cmd_cmd = IE_CMD_IASETUP | IE_CMD_LAST;
1531 cmd->com.ie_cmd_link = 0xffff;
1533 bcopy((volatile char *)IF_LLADDR(sc->ifp),
1534 (volatile char *)&cmd->ie_address, sizeof cmd->ie_address);
1535 scb->ie_command_list = MK_16(MEM(sc), cmd);
1536 if (command_and_wait(sc, IE_CU_START, cmd, IE_STAT_COMPL)
1537 || !(cmd->com.ie_cmd_status & IE_STAT_OK)) {
1538 printf("ie%d: individual address "
1539 "setup command failed\n", sc->unit);
1545 * Now run the time-domain reflectometer.
1547 run_tdr(sc, (volatile void *) ptr);
1550 * Acknowledge any interrupts we have generated thus far.
1552 ie_ack(sc, IE_ST_WHENCE);
1557 ptr = setup_rfa(sc, ptr);
1560 * Finally, the transmit command and buffer are the last little bit
1564 /* transmit command buffers */
1565 for (i = 0; i < sc->ntxbufs; i++) {
1566 sc->xmit_cmds[i] = (volatile void *) ptr;
1567 ptr += sizeof *sc->xmit_cmds[i];
1568 ptr = Alignvol(ptr);
1569 sc->xmit_buffs[i] = (volatile void *)ptr;
1570 ptr += sizeof *sc->xmit_buffs[i];
1571 ptr = Alignvol(ptr);
1574 /* transmit buffers */
1575 for (i = 0; i < sc->ntxbufs - 1; i++) {
1576 sc->xmit_cbuffs[i] = (volatile void *)ptr;
1578 ptr = Alignvol(ptr);
1580 sc->xmit_cbuffs[sc->ntxbufs - 1] = (volatile void *) ptr;
1582 for (i = 1; i < sc->ntxbufs; i++) {
1583 bzero((v_caddr_t) sc->xmit_cmds[i], sizeof *sc->xmit_cmds[i]);
1584 bzero((v_caddr_t) sc->xmit_buffs[i], sizeof *sc->xmit_buffs[i]);
1588 * This must be coordinated with iestart() and ietint().
1590 sc->xmit_cmds[0]->ie_xmit_status = IE_STAT_COMPL;
1592 /* take the ee16 out of loopback */
1593 if (sc->hard_type == IE_EE16) {
1594 u_int8_t bart_config;
1596 bart_config = inb(PORT(sc) + IEE16_CONFIG);
1597 bart_config &= ~IEE16_BART_LOOPBACK;
1598 /* inb doesn't get bit! */
1599 bart_config |= IEE16_BART_MCS16_TEST;
1600 outb(PORT(sc) + IEE16_CONFIG, bart_config);
1601 ee16_interrupt_enable(sc);
1604 sc->ifp->if_drv_flags |= IFF_DRV_RUNNING; /* tell higher levels
1606 sc->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1614 ie_stop(struct ie_softc *sc)
1616 command_and_wait(sc, IE_RU_DISABLE, 0, 0);
1620 ieioctl(struct ifnet *ifp, u_long command, caddr_t data)
1623 struct ie_softc *sc = ifp->if_softc;
1630 * Note that this device doesn't have an "all multicast"
1631 * mode, so we must turn on promiscuous mode and do the
1632 * filtering manually.
1634 if ((ifp->if_flags & IFF_UP) == 0 &&
1635 (ifp->if_drv_flags & IFF_DRV_RUNNING)) {
1636 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
1638 } else if ((ifp->if_flags & IFF_UP) &&
1639 (ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
1641 ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI);
1643 } else if (sc->promisc ^
1644 (ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI))) {
1646 ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI);
1654 * Update multicast listeners
1656 /* reset multicast filtering */
1662 error = ether_ioctl(ifp, command, data);
1671 ie_mc_reset(struct ie_softc *sc)
1673 struct ifmultiaddr *ifma;
1676 * Step through the list of addresses.
1678 sc->mcast_count = 0;
1679 IF_ADDR_LOCK(sc->ifp);
1680 TAILQ_FOREACH(ifma, &sc->ifp->if_multiaddrs, ifma_link) {
1681 if (ifma->ifma_addr->sa_family != AF_LINK)
1684 /* XXX - this is broken... */
1685 if (sc->mcast_count >= MAXMCAST) {
1686 sc->ifp->if_flags |= IFF_ALLMULTI;
1687 ieioctl(sc->ifp, SIOCSIFFLAGS, (void *) 0);
1690 bcopy(LLADDR((struct sockaddr_dl *) ifma->ifma_addr),
1691 &(sc->mcast_addrs[sc->mcast_count]), 6);
1694 IF_ADDR_UNLOCK(sc->ifp);
1697 sc->want_mcsetup = 1;
1703 print_rbd(volatile struct ie_recv_buf_desc * rbd)
1705 printf("RBD at %p:\n"
1706 "actual %04x, next %04x, buffer %p\n"
1707 "length %04x, mbz %04x\n",
1708 (volatile void *) rbd,
1709 rbd->ie_rbd_actual, rbd->ie_rbd_next,
1710 (void *) rbd->ie_rbd_buffer,
1711 rbd->ie_rbd_length, rbd->mbz);
1717 ie_alloc_resources (device_t dev)
1719 struct ie_softc * sc;
1723 sc = device_get_softc(dev);
1725 sc->io_res = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &sc->io_rid,
1728 device_printf(dev, "No I/O space?!\n");
1732 sc->io_bt = rman_get_bustag(sc->io_res);
1733 sc->io_bh = rman_get_bushandle(sc->io_res);
1735 sc->mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid,
1738 device_printf(dev, "No Memory!\n");
1742 sc->mem_bt = rman_get_bustag(sc->mem_res);
1743 sc->mem_bh = rman_get_bushandle(sc->mem_res);
1745 sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
1748 device_printf(dev, "No IRQ!\n");
1753 sc->port = rman_get_start(sc->io_res); /* XXX hack */
1754 sc->iomembot = rman_get_virtual(sc->mem_res);
1755 sc->iosize = rman_get_size(sc->mem_res);
1763 ie_release_resources (device_t dev)
1765 struct ie_softc * sc;
1767 sc = device_get_softc(dev);
1770 bus_teardown_intr(dev, sc->irq_res, sc->irq_ih);
1772 bus_release_resource(dev, SYS_RES_IOPORT,
1773 sc->io_rid, sc->io_res);
1775 bus_release_resource(dev, SYS_RES_IRQ,
1776 sc->irq_rid, sc->irq_res);
1778 bus_release_resource(dev, SYS_RES_MEMORY,
1779 sc->mem_rid, sc->mem_res);
1787 ie_detach (device_t dev)
1789 struct ie_softc * sc;
1792 sc = device_get_softc(dev);
1795 if (sc->hard_type == IE_EE16)
1796 ee16_shutdown(sc, 0);
1799 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
1800 ether_ifdetach(ifp);
1801 ie_release_resources(dev);